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i want indivisualscore of all the ids to get printed on the console.

when i search for each indivisual id passed it gives me correct answer. for example

 CollectionReference collectionReference = FirebaseFirestore.instance.collection('score'); await collectionReference.doc(widget.uid).collection("indivisualscore").snapshots().listen((event) { print(event.docs.length); }

here i am passing widget.uid, gives me indivisualscore of that particular id passed.

but i now want to obtain indivisualscore of all the ids, in the score collection. it has to do something with the length of the doc in score collection,but i am not able to get it correctly.

thanks.

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If you want to get the ids inside the collection score, then you have to do the following:

CollectionReference collectionReference = FirebaseFirestore.instance.collection('score'); var snapshot = await collectionReference.get(); snapshot.docs.forEach((result) { print(result.id); });

Reference the collection score then use get() to obtain the documents inside that collection, then the property docs will return a List<DocumentSnapshot> which you can iterate and get all the ids.

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15 Comments

where did you paste it?
if it is not printing, then its not even entering it.. you have to debug it to check
but for indivisual uid,its printing. i debugged it,and its running your code, but not printing anything.
printing print(snapshot.docs); shows empty erray in the console, and printing just snapshort gives Instance of 'QuerySnapshot' in console
appreciate @PeterHaddad for pointing the error,thankyou so much
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